view tests/test-evolve.t @ 1397:35f2f54b557c

evolve: make prune respect allowunsable

Before this patch, the prune command was performing the same way regardless
of the value of experimental.evolution.
With this patch if the configuration does not allow unstability, prune won't
create instability.

  $ cat >> $HGRCPATH <<EOF
  > [defaults]
  > amend=-d "0 0"
  > fold=-d "0 0"
  > [web]
  > push_ssl = false
  > allow_push = *
  > [phases]
  > publish = False
  > [alias]
  > qlog = log --template='{rev} - {node|short} {desc} ({phase})\n'
  > [diff]
  > git = 1
  > unified = 0
  > [extensions]
  > hgext.graphlog=
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext/evolve.py" >> $HGRCPATH
  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    hg ci -m "add $1"
  > }

  $ mkstack() {
  >    # Creates a stack of commit based on $1 with messages from $2, $3 ..
  >    hg update $1 -C
  >    shift
  >    mkcommits $*
  > }

  $ glog() {
  >   hg glog --template '{rev}:{node|short}@{branch}({phase}) {desc|firstline}\n' "$@"
  > }

  $ shaof() {
  >   hg log -T {node} -r "first(desc($1))"
  > }

  $ mkcommits() {
  >   for i in $@; do mkcommit $i ; done
  > }

various init

  $ hg init local
  $ cd local
  $ mkcommit a
  $ mkcommit b
  $ cat >> .hg/hgrc << EOF
  > [phases]
  > publish = True
  > EOF
  $ hg pull -q . # make 1 public
  $ rm .hg/hgrc
  $ mkcommit c
  $ mkcommit d
  $ hg up 1
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ mkcommit e -q
  created new head
  $ mkcommit f
  $ hg qlog
  5 - e44648563c73 add f (draft)
  4 - fbb94e3a0ecf add e (draft)
  3 - 47d2a3944de8 add d (draft)
  2 - 4538525df7e2 add c (draft)
  1 - 7c3bad9141dc add b (public)
  0 - 1f0dee641bb7 add a (public)

test kill and immutable changeset

  $ hg log -r 1 --template '{rev} {phase} {obsolete}\n'
  1 public stable
  $ hg kill 1
  abort: cannot prune immutable changeset: 7c3bad9141dc
  (see "hg help phases" for details)
  [255]
  $ hg log -r 1 --template '{rev} {phase} {obsolete}\n'
  1 public stable

test simple kill

  $ hg id -n
  5
  $ hg kill .
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  working directory now at fbb94e3a0ecf
  1 changesets pruned
  $ hg qlog
  4 - fbb94e3a0ecf add e (draft)
  3 - 47d2a3944de8 add d (draft)
  2 - 4538525df7e2 add c (draft)
  1 - 7c3bad9141dc add b (public)
  0 - 1f0dee641bb7 add a (public)

test multiple kill

  $ hg kill 4 -r 3
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  working directory now at 7c3bad9141dc
  2 changesets pruned
  $ hg qlog
  2 - 4538525df7e2 add c (draft)
  1 - 7c3bad9141dc add b (public)
  0 - 1f0dee641bb7 add a (public)

test kill with dirty changes

  $ hg up 2
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo 4 > g
  $ hg add g
  $ hg kill .
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  working directory now at 7c3bad9141dc
  1 changesets pruned
  $ hg st
  A g

Smoketest debugobsrelsethashtree:

  $ hg debugobsrelsethashtree
  1f0dee641bb7258c56bd60e93edfa2405381c41e 0000000000000000000000000000000000000000
  7c3bad9141dcb46ff89abf5f61856facd56e476c * (glob)
  4538525df7e2b9f09423636c61ef63a4cb872a2d * (glob)
  47d2a3944de8b013de3be9578e8e344ea2e6c097 * (glob)
  fbb94e3a0ecf6d20c2cc31152ef162ce45af982f * (glob)
  e44648563c73f75950076031c6fdf06629de95f1 * (glob)

  $ cd ..

##########################
importing Parren test
##########################

  $ cat << EOF >> $HGRCPATH
  > [ui]
  > logtemplate = "{rev}\t{bookmarks}: {desc|firstline} - {author|user}\n"
  > EOF

Creating And Updating Changeset
===============================

Setup the Base Repo
-------------------

We start with a plain base repo::

  $ hg init main; cd main
  $ cat >main-file-1 <<-EOF
  > One
  > 
  > Two
  > 
  > Three
  > EOF
  $ echo Two >main-file-2
  $ hg add
  adding main-file-1
  adding main-file-2
  $ hg commit --message base
  $ cd ..

and clone this into a new repo where we do our work::

  $ hg clone main work
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd work


Create First Patch
------------------

To begin with, we just do the changes that will be the initial version of the changeset::

  $ echo One >file-from-A
  $ sed -i'' -e s/One/Eins/ main-file-1
  $ hg add file-from-A

So this is what we would like our changeset to be::

  $ hg diff
  diff --git a/file-from-A b/file-from-A
  new file mode 100644
  --- /dev/null
  +++ b/file-from-A
  @@ -0,0 +1,1 @@
  +One
  diff --git a/main-file-1 b/main-file-1
  --- a/main-file-1
  +++ b/main-file-1
  @@ -1,1 +1,1 @@
  -One
  +Eins

To commit it we just - commit it::

  $ hg commit --message "a nifty feature"

and place a bookmark so we can easily refer to it again (which we could have done before the commit)::

  $ hg book feature-A


Create Second Patch
-------------------

Let's do this again for the second changeset::

  $ echo Two >file-from-B
  $ sed -i'' -e s/Two/Zwie/ main-file-1
  $ hg add file-from-B

Before committing, however, we need to switch to a new bookmark for the second
changeset. Otherwise we would inadvertently move the bookmark for our first changeset.
It is therefore advisable to always set the bookmark before committing::

  $ hg book feature-B
  $ hg commit --message "another feature (child of $(hg log -r . -T '{node|short}'))"

So here we are::

  $ hg book
     feature-A                 1:568a468b60fc
   * feature-B                 2:73296a82292a


Fix The Second Patch
--------------------

There's a typo in feature-B. We spelled *Zwie* instead of *Zwei*::

  $ hg diff --change tip | grep -F Zwie
  +Zwie

Fixing this is very easy. Just change::

  $ sed -i'' -e s/Zwie/Zwei/ main-file-1

and **amend**::

  $ hg amend

This results in a new single changeset for our amended changeset, and the old
changeset plus the updating changeset are hidden from view by default::

  $ hg log
  4	feature-B: another feature (child of 568a468b60fc) - test
  1	feature-A: a nifty feature - test
  0	: base - test

  $ hg up feature-A -q
  $ hg bookmark -i feature-A
  $ sed -i'' -e s/Eins/Un/ main-file-1

(amend of public changeset denied)

  $ hg phase --public 0 -v
  phase changed for 1 changesets


(amend of on ancestors)

  $ hg amend
  1 new unstable changesets
  $ hg log
  6	feature-A: a nifty feature - test
  4	feature-B: another feature (child of 568a468b60fc) - test
  1	: a nifty feature - test
  0	: base - test
  $ hg up -q 0
  $ glog --hidden
  o  6:ba0ec09b1bab@default(draft) a nifty feature
  |
  | x  5:c296b79833d1@default(draft) temporary amend commit for 568a468b60fc
  | |
  | | o  4:6992c59c6b06@default(draft) another feature (child of 568a468b60fc)
  | |/
  | | x  3:c97947cdc7a2@default(draft) temporary amend commit for 73296a82292a
  | | |
  | | x  2:73296a82292a@default(draft) another feature (child of 568a468b60fc)
  | |/
  | x  1:568a468b60fc@default(draft) a nifty feature
  |/
  @  0:e55e0562ee93@default(public) base
  
  $ hg debugobsolete
  73296a82292a76fb8a7061969d2489ec0d84cd5e 6992c59c6b06a1b4a92e24ff884829ae026d018b 0 (*) {'user': 'test'} (glob)
  c97947cdc7a2a11cf78419f5c2c3dd3944ec79e8 0 {73296a82292a76fb8a7061969d2489ec0d84cd5e} (*) {'user': 'test'} (glob)
  568a468b60fc99a42d5d4ddbe181caff1eef308d ba0ec09b1babf3489b567853807f452edd46704f 0 (*) {'user': 'test'} (glob)
  c296b79833d1d497f33144786174bf35e04e44a3 0 {568a468b60fc99a42d5d4ddbe181caff1eef308d} (*) {'user': 'test'} (glob)
  $ hg evolve
  move:[4] another feature (child of 568a468b60fc)
  atop:[6] a nifty feature
  merging main-file-1
  working directory is now at 5c9c8d9c2e4e
  $ hg log
  7	feature-B: another feature (child of ba0ec09b1bab) - test
  6	feature-A: a nifty feature - test
  0	: base - test

Test commit -o options

  $ hg up 6
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg revert -r 7 --all
  adding file-from-B
  reverting main-file-1
  $ sed -i'' -e s/Zwei/deux/ main-file-1
  $ hg commit -m 'another feature that rox' -o 7
  created new head
  $ hg log
  8	feature-B: another feature that rox - test
  6	feature-A: a nifty feature - test
  0	: base - test

phase change turning obsolete changeset public issue a bumped warning

  $ hg phase --hidden --public 7
  1 new bumped changesets

all solving bumped troubled

  $ hg glog
  @  8	feature-B: another feature that rox - test
  |
  | o  7	: another feature (child of ba0ec09b1bab) - test
  |/
  o  6	feature-A: a nifty feature - test
  |
  o  0	: base - test
  
  $ hg evolve --any --traceback
  recreate:[8] another feature that rox
  atop:[7] another feature (child of ba0ec09b1bab)
  computing new diff
  committed as 476d0454d60e
  working directory is now at 476d0454d60e
  $ hg glog
  @  9	feature-B: bumped update to 5c9c8d9c2e4e: - test
  |
  o  7	: another feature (child of ba0ec09b1bab) - test
  |
  o  6	feature-A: a nifty feature - test
  |
  o  0	: base - test
  
  $ hg diff --hidden -r 9 -r 8
  $ hg diff -r 9^ -r 9
  diff --git a/main-file-1 b/main-file-1
  --- a/main-file-1
  +++ b/main-file-1
  @@ -3,1 +3,1 @@
  -Zwei
  +deux
  $ hg log -r 'bumped()' # no more bumped

test evolve --all
  $ sed -i'' -e s/deux/to/ main-file-1
  $ hg commit -m 'dansk 2!'
  $ sed -i'' -e s/Three/tre/ main-file-1
  $ hg commit -m 'dansk 3!'
  $ hg update 9
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ sed -i'' -e s/Un/Én/ main-file-1
  $ hg commit --amend -m 'dansk!'
  2 new unstable changesets

(ninja test for the {trouble} template:

  $ hg log -G --template '{rev} {troubles}\n'
  @  13
  |
  | o  11 unstable
  | |
  | o  10 unstable
  | |
  | x  9
  |/
  o  7
  |
  o  6
  |
  o  0
  


(/ninja)

  $ hg evolve --all --traceback
  move:[10] dansk 2!
  atop:[13] dansk!
  merging main-file-1
  move:[11] dansk 3!
  atop:[14] dansk 2!
  merging main-file-1
  working directory is now at cfb5ebed336d
  $ hg glog
  @  15	: dansk 3! - test
  |
  o  14	: dansk 2! - test
  |
  o  13	feature-B: dansk! - test
  |
  o  7	: another feature (child of ba0ec09b1bab) - test
  |
  o  6	feature-A: a nifty feature - test
  |
  o  0	: base - test
  

  $ cd ..

enable general delta

  $ cat << EOF >> $HGRCPATH
  > [format]
  > generaldelta=1
  > EOF



  $ hg init alpha
  $ cd alpha
  $ echo 'base' > firstfile
  $ hg add firstfile
  $ hg ci -m 'base'

  $ cd ..
  $ hg clone -Ur 0 alpha beta
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  $ cd alpha

  $ cat << EOF > A
  > We
  > need
  > some
  > kind
  > of 
  > file
  > big
  > enough
  > to
  > prevent
  > snapshot
  > .
  > yes
  > new
  > lines
  > are
  > useless
  > .
  > EOF
  $ hg add A
  $ hg commit -m 'adding A'
  $ hg mv A B
  $ echo '.' >> B
  $ hg amend -m 'add B'
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  3 files, 4 changesets, 4 total revisions
  $ hg --config extensions.hgext.mq= strip 'extinct()'
  abort: empty revision set
  [255]
  $ hg --config extensions.hgext.mq= strip --hidden 'extinct()'
  saved backup bundle to $TESTTMP/alpha/.hg/strip-backup/e87767087a57-d7bd82e9-backup.hg (glob)
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  2 files, 2 changesets, 2 total revisions
  $ cd ..

Clone just this branch

  $ cd beta
  $ hg pull -r tip ../alpha
  pulling from ../alpha
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  2 new obsolescence markers
  (run 'hg update' to get a working copy)
  $ hg up
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd ..

Test graft --obsolete/--old-obsolete

  $ hg init test-graft
  $ cd test-graft
  $ mkcommit 0
  $ mkcommit 1
  $ mkcommit 2
  $ mkcommit 3
  $ hg up -qC 0
  $ mkcommit 4
  created new head
  $ glog --hidden
  @  4:ce341209337f@default(draft) add 4
  |
  | o  3:0e84df4912da@default(draft) add 3
  | |
  | o  2:db038628b9e5@default(draft) add 2
  | |
  | o  1:73d38bb17fd7@default(draft) add 1
  |/
  o  0:8685c6d34325@default(draft) add 0
  
  $ hg graft -r3 -O
  grafting 3:0e84df4912da "add 3"
  $ hg graft -r1 -o 2
  grafting 1:73d38bb17fd7 "add 1"
  $ glog --hidden
  @  6:acb28cd497b7@default(draft) add 1
  |
  o  5:0b9e50c35132@default(draft) add 3
  |
  o  4:ce341209337f@default(draft) add 4
  |
  | x  3:0e84df4912da@default(draft) add 3
  | |
  | x  2:db038628b9e5@default(draft) add 2
  | |
  | o  1:73d38bb17fd7@default(draft) add 1
  |/
  o  0:8685c6d34325@default(draft) add 0
  
  $ hg debugobsolete
  0e84df4912da4c7cad22a3b4fcfd58ddfb7c8ae9 0b9e50c35132ff548ec0065caea6a87e1ebcef32 0 (*) {'user': 'test'} (glob)
  db038628b9e56f51a454c0da0c508df247b41748 acb28cd497b7f8767e01ef70f68697a959573c2d 0 (*) {'user': 'test'} (glob)

Test graft --continue

  $ hg up -qC 0
  $ echo 2 > 1
  $ hg ci -Am conflict 1
  created new head
  $ hg up -qC 6
  $ hg graft -O 7
  grafting 7:a5bfd90a2f29 "conflict" (tip)
  merging 1
  warning: conflicts during merge.
  merging 1 incomplete! (edit conflicts, then use 'hg resolve --mark')
  abort: unresolved conflicts, can't continue
  (use hg resolve and hg graft --continue)
  [255]
  $ hg log -r7 --template '{rev}:{node|short} {obsolete}\n'
  7:a5bfd90a2f29 stable
  $ echo 3 > 1
  $ hg resolve -m 1
  (no more unresolved files)
  $ hg graft --continue -O
  grafting 7:a5bfd90a2f29 "conflict" (tip)
  $ glog --hidden
  @  8:920e58bb443b@default(draft) conflict
  |
  | x  7:a5bfd90a2f29@default(draft) conflict
  | |
  o |  6:acb28cd497b7@default(draft) add 1
  | |
  o |  5:0b9e50c35132@default(draft) add 3
  | |
  o |  4:ce341209337f@default(draft) add 4
  |/
  | x  3:0e84df4912da@default(draft) add 3
  | |
  | x  2:db038628b9e5@default(draft) add 2
  | |
  | o  1:73d38bb17fd7@default(draft) add 1
  |/
  o  0:8685c6d34325@default(draft) add 0
  
  $ hg debugobsolete
  0e84df4912da4c7cad22a3b4fcfd58ddfb7c8ae9 0b9e50c35132ff548ec0065caea6a87e1ebcef32 0 (*) {'user': 'test'} (glob)
  db038628b9e56f51a454c0da0c508df247b41748 acb28cd497b7f8767e01ef70f68697a959573c2d 0 (*) {'user': 'test'} (glob)
  a5bfd90a2f29c7ccb8f917ff4e5013a9053d0a04 920e58bb443b73eea9d6d65570b4241051ea3229 0 (*) {'user': 'test'} (glob)

Test touch

  $ glog
  @  8:920e58bb443b@default(draft) conflict
  |
  o  6:acb28cd497b7@default(draft) add 1
  |
  o  5:0b9e50c35132@default(draft) add 3
  |
  o  4:ce341209337f@default(draft) add 4
  |
  | o  1:73d38bb17fd7@default(draft) add 1
  |/
  o  0:8685c6d34325@default(draft) add 0
  
  $ hg touch
  $ glog
  @  9:*@default(draft) conflict (glob)
  |
  o  6:acb28cd497b7@default(draft) add 1
  |
  o  5:0b9e50c35132@default(draft) add 3
  |
  o  4:ce341209337f@default(draft) add 4
  |
  | o  1:73d38bb17fd7@default(draft) add 1
  |/
  o  0:8685c6d34325@default(draft) add 0
  
  $ hg touch .
  $ glog
  @  10:*@default(draft) conflict (glob)
  |
  o  6:acb28cd497b7@default(draft) add 1
  |
  o  5:0b9e50c35132@default(draft) add 3
  |
  o  4:ce341209337f@default(draft) add 4
  |
  | o  1:73d38bb17fd7@default(draft) add 1
  |/
  o  0:8685c6d34325@default(draft) add 0
  

Test fold

  $ rm *.orig
  $ hg fold
  abort: no revisions specified
  [255]
  $ hg fold .
  single revision specified, nothing to fold
  [1]
  $ hg fold 0::10 --rev 1 --exact
  abort: cannot fold non-linear revisions (multiple heads given)
  [255]
  $ hg fold -r 4 -r 6 --exact
  abort: cannot fold non-linear revisions (multiple roots given)
  [255]
  $ hg fold 10 1
  abort: cannot fold non-linear revisions
  (given revisions are unrelated to parent of working directory)
  [255]
  $ hg phase --public 0
  $ hg fold -r 0
  abort: cannot fold public revisions
  [255]
  $ hg fold -r 5
  3 changesets folded
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg fold 6 # want to run hg fold 6
  abort: hidden revision '6'!
  (use --hidden to access hidden revisions)
  [255]
  $ hg log -r 11 --template '{desc}\n'
  add 3
  
  
  add 1
  
  
  conflict
  $ hg debugrebuildstate
  $ hg st

Test fold with wc parent is not the head of the folded revision

  $ hg up 4
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg fold --rev 4::11 --user victor --exact
  2 changesets folded
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ glog
  @  12:d26d339c513f@default(draft) add 4
  |
  | o  1:73d38bb17fd7@default(draft) add 1
  |/
  o  0:8685c6d34325@default(public) add 0
  
  $ hg log --template '{rev}: {author}\n'
  12: victor
  1: test
  0: test
  $ hg log -r 12 --template '{desc}\n'
  add 4
  
  
  add 3
  
  
  add 1
  
  
  conflict
  $ hg debugrebuildstate
  $ hg st

Test olog

  $ hg olog
  4	: add 4 - test
  11	: add 3 - test

Test obsstore stat

  $ hg debugobsstorestat
  markers total:                     10
      for known precursors:          10
      with parents data:              0
  markers with no successors:         0
                1 successors:        10
                2 successors:         0
      more than 2 successors:         0
      available  keys:
                 user:               10
  disconnected clusters:              1
          any known node:             1
          smallest length:           10
          longer length:             10
          median length:             10
          mean length:               10
      using parents data:             1
          any known node:             1
          smallest length:           10
          longer length:             10
          median length:             10
          mean length:               10


Test evolving renames

  $ hg up null
  0 files updated, 0 files merged, 4 files removed, 0 files unresolved
  $ echo a > a
  $ hg ci -Am a
  adding a
  created new head
  $ echo b > b
  $ hg ci -Am b
  adding b
  $ hg mv a c
  $ hg ci -m c
  $ hg kill .^
  1 changesets pruned
  1 new unstable changesets
  $ hg stab --any
  move:[15] c
  atop:[13] a
  working directory is now at 3742bde73477
  $ hg st -C --change=tip
  A c
    a
  R a

Test fold with commit messages

  $ cd ../work
  $ hg fold .^ --message "Folding with custom commit message"
  2 changesets folded
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ glog
  @  16:d6239ff09c9f@default(draft) Folding with custom commit message
  |
  o  13:56ade053f46d@default(draft) dansk!
  |
  o  7:5c9c8d9c2e4e@default(public) another feature (child of ba0ec09b1bab)
  |
  o  6:ba0ec09b1bab@default(public) a nifty feature
  |
  o  0:e55e0562ee93@default(public) base
  
  $ cat > commit-message <<EOF
  > A longer
  >                   commit message
  > EOF

  $ hg fold .^ --logfile commit-message
  2 changesets folded
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg qlog
  17 - dba606655966 A longer
                    commit message (draft)
  7 - 5c9c8d9c2e4e another feature (child of ba0ec09b1bab) (public)
  6 - ba0ec09b1bab a nifty feature (public)
  0 - e55e0562ee93 base (public)

  $ cd ..

Test branch preservation:
===========================

  $ hg init evolving-branch
  $ cd evolving-branch
  $ touch a
  $ hg add a
  $ hg ci -m 'a0'
  $ echo 1 > a
  $ hg ci -m 'a1'
  $ echo 2 > a
  $ hg ci -m 'a2'
  $ echo 3 > a
  $ hg ci -m 'a3'

  $ hg log -G --template '{rev} [{branch}] {desc|firstline}\n'
  @  3 [default] a3
  |
  o  2 [default] a2
  |
  o  1 [default] a1
  |
  o  0 [default] a0
  

branch change propagated

  $ hg up 'desc(a2)'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg branch mybranch
  marked working directory as branch mybranch
  (branches are permanent and global, did you want a bookmark?)
  $ hg amend
  1 new unstable changesets

  $ hg evolve
  move:[3] a3
  atop:[5] a2
  working directory is now at 7c5649f73d11

  $ hg log -G --template '{rev} [{branch}] {desc|firstline}\n'
  @  6 [mybranch] a3
  |
  o  5 [mybranch] a2
  |
  o  1 [default] a1
  |
  o  0 [default] a0
  

branch change preserved

  $ hg up 'desc(a1)'
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg amend -m 'a1_'
  2 new unstable changesets
  $ hg evolve
  move:[5] a2
  atop:[7] a1_
  working directory is now at 5406c5cfee42
  $ hg evolve
  move:[6] a3
  atop:[8] a2
  working directory is now at c7661e655801
  $ hg log -G --template '{rev} [{branch}] {desc|firstline}\n'
  @  9 [mybranch] a3
  |
  o  8 [mybranch] a2
  |
  o  7 [default] a1_
  |
  o  0 [default] a0
  

Evolve from the middle of a stack pick the right changesets.

  $ hg up 7
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg ci --amend -m 'a1__'
  2 new unstable changesets

  $ hg up 8
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg evolve
  nothing to evolve here
  (2 troubled changesets, do you want --any ?)
  [2]


Evolve disables active bookmarks.

  $ hg up 10
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg bookmark testbookmark
  $ ls .hg/bookmarks*
  .hg/bookmarks
  .hg/bookmarks.* (glob)
  $ hg evolve
  move:[8] a2
  atop:[10] a1__
  (leaving bookmark testbookmark)
  working directory is now at f37ed7a60f43
  $ ls .hg/bookmarks*
  .hg/bookmarks

Possibility to select what trouble to solve first, asking for bumped before
divergent
  $ hg up 10
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg revert -r 11 --all
  reverting a
  $ hg log -G --template '{rev} [{branch}] {desc|firstline}\n'
  o  11 [mybranch] a2
  |
  @  10 [default] a1__
  |
  | o  9 [mybranch] a3
  | |
  | x  8 [mybranch] a2
  | |
  | x  7 [default] a1_
  |/
  o  0 [default] a0
  
  $ echo "hello world" > newfile
  $ hg add newfile
  $ hg commit -m "add new file bumped" -o 11
  $ hg phase --public --hidden 11
  1 new bumped changesets
  $ hg glog
  @  12	: add new file bumped - test
  |
  | o  11	: a2 - test
  |/
  o  10	testbookmark: a1__ - test
  |
  | o  9	: a3 - test
  | |
  | x  8	: a2 - test
  | |
  | x  7	: a1_ - test
  |/
  o  0	: a0 - test
  

Now we have a bumped and an unstable changeset, we solve the bumped first
normally the unstable changeset would be solve first

  $ hg glog
  @  12	: add new file bumped - test
  |
  | o  11	: a2 - test
  |/
  o  10	testbookmark: a1__ - test
  |
  | o  9	: a3 - test
  | |
  | x  8	: a2 - test
  | |
  | x  7	: a1_ - test
  |/
  o  0	: a0 - test
  
  $ hg evolve -r 12
  recreate:[12] add new file bumped
  atop:[11] a2
  computing new diff
  committed as d66b1e328488
  working directory is now at d66b1e328488
  $ hg evolve --any
  move:[9] a3
  atop:[13] bumped update to f37ed7a60f43:
  working directory is now at 7d2ce5f38f9b
Check that we can resolve troubles in a revset with more than one commit
  $ hg up 14 -C
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ mkcommit gg
  $ hg up 14 
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit gh
  created new head
  $ hg up 14 
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo "newline\nnewline" >> a
  $ hg glog
  o  16	: add gh - test
  |
  | o  15	: add gg - test
  |/
  @  14	: a3 - test
  |
  o  13	: bumped update to f37ed7a60f43: - test
  |
  o  11	: a2 - test
  |
  o  10	testbookmark: a1__ - test
  |
  o  0	: a0 - test
  
  $ hg amend
  2 new unstable changesets
  $ hg glog
  @  18	: a3 - test
  |
  | o  16	: add gh - test
  | |
  | | o  15	: add gg - test
  | |/
  | x  14	: a3 - test
  |/
  o  13	: bumped update to f37ed7a60f43: - test
  |
  o  11	: a2 - test
  |
  o  10	testbookmark: a1__ - test
  |
  o  0	: a0 - test
  

Evolving an empty revset should do nothing
  $ hg evolve --rev "16 and 15"
  No troubled changes in the specified revisions

  $ hg evolve --rev "14::"
  move:[15] add gg
  atop:[18] a3
  move:[16] add gh
  atop:[18] a3
  working directory is now at db3d894869b0
  $ hg glog
  @  20	: add gh - test
  |
  | o  19	: add gg - test
  |/
  o  18	: a3 - test
  |
  o  13	: bumped update to f37ed7a60f43: - test
  |
  o  11	: a2 - test
  |
  o  10	testbookmark: a1__ - test
  |
  o  0	: a0 - test
  
Check hg evolve --rev on singled out commit


  $ hg up 19 -C
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ mkcommit j1
  $ mkcommit j2
  $ mkcommit j3
  $ hg up .^^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo "hello" > j4
  $ hg add j4
  $ hg amend
  2 new unstable changesets
  $ glog -r "18::"
  @  25:4c0bc042ef3b@default(draft) add j1
  |
  | o  23:c70048fd3350@default(draft) add j3
  | |
  | o  22:714e60ca57b7@default(draft) add j2
  | |
  | x  21:b430835af718@default(draft) add j1
  |/
  | o  20:db3d894869b0@default(draft) add gh
  | |
  o |  19:10ffdd7e3cc9@default(draft) add gg
  |/
  o  18:0bb66d4c1968@default(draft) a3
  |

  $ hg evolve --rev 23
  cannot solve instability of c70048fd3350, skipping

Check that uncommit respects the allowunstable option
With only createmarkers we can only uncommit on a head
  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolution=createmarkers, allnewcommands
  > EOF
  $ hg up 4c0bc042ef3b^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg uncommit --all
  abort: cannot uncommit in the middle of a stack
  [255]
  $ hg up 4c0bc042ef3b
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg uncommit --all
  new changeset is empty
  (use "hg prune ." to remove it)
  $ glog -r "18::"
  @  26:04b32348803e@default(draft) add j1
  |
  | o  23:c70048fd3350@default(draft) add j3
  | |
  | o  22:714e60ca57b7@default(draft) add j2
  | |
  | x  21:b430835af718@default(draft) add j1
  |/
  | o  20:db3d894869b0@default(draft) add gh
  | |
  o |  19:10ffdd7e3cc9@default(draft) add gg
  |/
  o  18:0bb66d4c1968@default(draft) a3
  |

Check that prune respects the allowunstable option
  $ hg up -C .
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg evolve --rev "22::"
  move:[22] add j2
  atop:[26] add j1
  move:[23] add j3
  atop:[27] add j2
  working directory is now at 920a35e8dbd0
  $ glog -r "18::"
  @  28:920a35e8dbd0@default(draft) add j3
  |
  o  27:31e050d895dd@default(draft) add j2
  |
  o  26:04b32348803e@default(draft) add j1
  |
  | o  20:db3d894869b0@default(draft) add gh
  | |
  o |  19:10ffdd7e3cc9@default(draft) add gg
  |/
  o  18:0bb66d4c1968@default(draft) a3
  |
  $ hg up 19
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ mkcommit c5_
  created new head
  $ hg prune '26 + 27'
  abort: cannot prune in the middle of a stack
  [255]
  $ hg prune '19::28'
  abort: cannot prune in the middle of a stack
  [255]
  $ hg prune '26::'
  3 changesets pruned
  $ glog -r "18::"
  @  29:5a6c53544778@default(draft) add c5_
  |
  | o  20:db3d894869b0@default(draft) add gh
  | |
  o |  19:10ffdd7e3cc9@default(draft) add gg
  |/
  o  18:0bb66d4c1968@default(draft) a3
  |